Volume 9, Number 1—January 2003
Research
Foot and Mouth Disease in Livestock and Reduced Cryptosporidiosis in Humans, England and Wales
Table 2
Mean counts of reports for weeks and years of foot-and-mouth-disease epidemic and weeks and years of non–foot-and-mouth-disease epidemic used to calculate risk ratios
Yr 2001 | Remaining yrs 1991–2000 | |
---|---|---|
Wks 8–39 |
A |
B |
Wks 1–7 and 40–52 | C | D |